And thank you for the suggestions and replies. However after trying those... Months and months later, our FIREX smoke alarm still does a single beep every 60 seconds. One would think this is ALOT! But the sad thing is, it's gone on for so long that, we've started to tune it out i guess. But when I do actually count it, it's on the dot.. every minute. The only time we really really notice it is obviously at night, and when people come over they always say, "what is that?" "why's it keep beeping?"

With or without a battery the dhang thing keeps beeping. Anyone else have this problem or know how to fix it... PLEASE???!!!!! It's really starting to get annoying.

btw... i've just bought BRAND NEW DURACELL batteries, and the sucker still beeps. HELP!!!!

Without the bateries, the thing will beep because it's hooked to the house power.

They are designed to go of in the event of power falure.

I've found a few where the little metal clip that pushes up against the battery lead needs to be bent so that it will properly make contact. If the battery is not properly connected then the system will beep.

There's also the possibility that the detector is bad.

In that case, you can get the moddel number and order on on-line.

The forex ones are a bit more wexpensive than what you can get online.

If you really can figure it out, I'd be willing to take a look at it.

I have to service these things all the time in the rental properties.

Opinions and information provided by me are mine alone and do not necessarily represent the board or districts point of view.Jim Lamb

After checking that the batteries are installed properly and that the contacts are touching the batteries, as Jim suggested, you might try locating the electrical breaker that powers the smoke detector and shut it off for a few minutes, it may reset the detector and stop the beeping.

I had the same problem sometime ago.. I replaced the batteries few times and every time I get a different brand but that did not help.. I removed the batteries entirely and still got that sound every approx one minute.. anyways, I later called the builder and they came and replaced the unit (the smoke detector itself) which might be 20-30$ I guess.. and that resolved my problem..

Just had the same problem. Apparently sometimes they need to be reset manually. If you have a Fireex brand here's how you do it.

3) Reset the alarm.

Most current model smoke alarms have a processor that retains
certain error conditions, such as a weak battery. The error condition
should reset when the battery is replaced but sometimes it does not and
must be manually reset to clear the error.

To reset an AC unit with a battery backup:

Turn off the power to the smoke alarm at the circuit breaker.Remove the smoke alarm from the mounting bracket and
disconnect the power. Remove the battery. Press and hold the test button
for at least 15 seconds. The unit may chirp or alarm for a few seconds
before going silent.Reconnect the power and
reinstall the battery. The unit will chirp once when the power is
restored and should not chirp afterwards."

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